Binding-post for electrical conductors.



C. J. KLEIN.

BINDING POST FOR ELECTRICAL CONDUCTORS.

APPLICATION FILED FEB. 24. 1913.

1,154,583. Patented Sept. 21, 1915.

UNITED STATES PATENT .o EI E.

CHARLES J. KLEIN, OE MILWAUKEE, WISCONSIN, ASSIGNOR TO THE CUTLER-HAMMERMFG. 00., 0F MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.

BINDING-POST FOR ELECTRICAL CONDUCTOR-S.

Application filed February 24, 1913.

To (ZZZ 4177mm it may concern Be it known that l, 'CHARLEs J. KLEIN, acitizen of the United. States, residing at Milwaukee. in the county ofMilwaukee and State of lVisconsin, have invented new and usefulImprovements in Binding-Posts for Electrical Conductors, of which thefollowing is a full, clear, concise, and exact description, referencebeing had to the accompanying drawing, forming a part of thisspecification.

My invention relates to binding posts fol electric conductors.

It has among its objects to provide an improved binding post adapted tohold a conductor securely in position.

A further object of my invention -is to provide an improved binding postwhich is adapted to establish an intimate electrical contact with theconductor.

Other objects and advantages of my improvement will hereinafter appear.

In order that my invention may be fully and clearly disclosed I haveillustrated one embodiment of the same in the accompanying drawings.

Figure 1 is a top plan view of the binding post with the conductor inposition therein. Fig. 2 is a transverse sectional view of the same.Fig. 3 is a transverse sectional View of the binding post with theconductor clamped therein.

The binding'post' illustrated when broadly considered comprises ashallow flexible cap or cup 1 and means for compressing the same upon aconductor. This cap 1 is preferably formed of soft metal and provided inits top with a central opening 2 to receive a binding screw 8. It isfurther provided with a side wall 4 extending about three-quarters ofthe way around the same, whose rim is adapted to engage with the surfaceof a support 5 in which the screw 3 is threaded. A portion of this walland preferably a por tion of the top of the cap is cut away as shown at6 to provide an entry for the conductor 7.

When it is desired to attach the conductor 7 to the binding post it isonly necessary to insert the end of the same in the opening 6Specification of Letters Patent.

Patented Sept. 21, 1915.

Serial No. 750,258.

so that it extends into the chamber formed between the walls of theflange 4 and the periphery of the screw 3. The screw 3 is then rotatedto cause its head to depress the material of the cap as shown in Fig. 3.When this is done the conductor is clamped securely between the cap 1and the base or plate 5 so that it cannot be accidentally disengagedtherefrom and the Conducting parts are brought into such intimatemechanical engagement as to insure a good Contact. The security of thefastening means is further enhanced by the fact that the conductor ifdesired may extend practically entirely through the channel formedbetween the cap wall and the screw. However, it is not essential thatthe conductor extend entirely around the screw, as even if the conductoris only inserted a short way in the chamber the clamping action is veryefiicient. Obviously, however, for mechanical reasons, the passage ofthe conductor around the shank of the screw serves to produce a moresecure connection.

What I claim as new and desire to secure by Letters Patent is:

1. The combination with a screw binding post, of an inverted cup-shapedwasher centrally penetrated thereby, said washer being of soft metal andyieldable centrally under the pressure of said screw to be therebyshaped to and clamped against an inclosed conductor terminal.

2. The combination with a screw binding post, of a clamping washercentrally penetrated thereby, said washer having a depending peripheralflange and a flat soft metal.

top, the central portion of said top being depressible by said screw toclamp a conductor against said peripheral flange and to be itselfclamped between such conductor and said screw.

3. The combination with a screw binding post, of a soft'metal clampingwasher centrally penetrated thereby, said washer being peripherallysupported and centrally unsupported to yield centrally downward andperipherally outward under pressure of said screw for thereby shaping toand closely clamping upon a conductor coiled therein.

4. The combination with a screw binding post, of a soft metal clampingwasher centrally penetrated thereby, said washer having a dependingperipheral flange and being 5 yieldable to the pressure'of said screw tospread and in spreading to shape about and firmly clamp the conductor tobe secured.

In witness whereof, I have hereunto subscribed my name in the presenceof two witnesses.

, r CHARLES J. KLEIN.

Witnesses F. H. HUBBARD LEONARD A. WATSON.

